In my mind, the lyric sets the feel of the song. I don't want to hear a sad song played happy. I don't want to hear happy songs played sad.
Many, many of my favorite songs are those where the lyrics would indicate a sad song but the music is deceptively peppy. "Allentown" by Billy Joel and "Hungry Heart" by Bruce Springsteen are two obvious examples that leap to mind. I find the juxtaposition can be absolutely spine-tingling.
In the 60's, lyrics became very important, as rock 'n roll grew up and moved away from the "Be Bop A Lula" lyrical nonsense of the 50's, and became socially conscious, taking on thorny subjects like Viet Nam, racism, hard drugs, poverty and politics. Don't get me wrong; I like Gene Vincent and Buddy Holly and a lot of the original rockabilly stuff just fine, but a lot of 50's lyrics were either shallow or silly, because record companies purposely fed teenagers silly musical shit. The Beatles had a big hand in changing that.
Here's a song I love by a band I like. I'd never heard a note of their music or even heard of the group before someone on a blog I sometimes read embedded the video. I clicked play and I swear I don't think it took two full measures before I thought, "I'm not sure I've ever heard a song in my entire life I've loved more." It was that deep and that immediate. 15 years later and I still feel nearly the same.
And after hearing it I don't know how many dozens of times, I still don't know almost any of the lyrics, and the one line I do know—"I saw you on bus 15"—is fine but isn't exactly "The ghost of 'lectricity howls in the bones of her face where these visions of Johanna have now taken my place" or "He felt the heat of the night hit him like a freight train moving with a simple twist of fate."
The Beatles are far and away my favorite band and Springsteen my favorite solo artist, followed by Bob Dylan, with the likes of Neil Young, Suzanne Vega, Jackson Browne, Peter Gabriel, Paul Westerberg, Elliott Smith and other such outstanding writers of lyrics not far behind. And yet lyrics are far, far, far below melody, for me, when it comes to the importance and impact of a song. John Lennon himself—obviously one of the great songwriters of all time and someone (nearly) as responsible as anyone for the leap in sophistication rock songwriting took in the 60s—said
"There is nothing conceptually better than rock and roll. No group, be it Beatles, Dylan or Stones have ever improved on 'Whole Lot of Shaking' for my money."
And Peter Gabriel—who, again, has a pretty impressive CV—once said
"There have been many great songs which have had really appalling lyrics, but there have been no great songs which have had appalling music."
So. For me, if a song has great lyrics, that's awesome. That's a beautiful bonus, and makes a song that much better. And if a song has truly terrible lyrics, well, it almost doesn't matter how good the words are. But in general I just need words that are good enough not to ruin it. Anything over that is gravy.
"A-wop-bop-a-loo-bop-a-wop-bam-boom" or "da-doo-ron-ron-ron" or "sha-la-la-la-la-la-la-la-la-la-la-tee-da" or "de-do-do-do-de-da-da-da" or, for that matter, "hello, hello, hello, how low." There are some things that regular words are not capable of quite capturing, and sometimes words or even nonsense syllables mean so much more than they seem.